Hi there and Welcome.
There's not a duff suggestion here.
My $.02 would be a decent, but not expensive zoom EP in the 8-24mm range. Meade, Baader Planetarium, vixen, Pentax and Nikon all make very good ones.
This way you canget a feel for the focal lengths you prefer and your scope can handle. For me 42mm is a tad wide, I prefer 32-35 as the widest as it provides great views with useful maginification.
If you want to jump in at the deep end I'd go:
Televue 24mm Panoptic & barlow.
or
Televue 15mm Plossl or 19mm Panoptic and University Optics 26mm SWA + Barlow.
But really I'd start with the zoom!

"Good Scope"
Peter